Steam platen



Aug. 11, 1925. 1,549,464

R.'W. DINZL STEAM PLATEN Filed May 23. 1923 2 Sheets-Sheet l @u .NN W 51 wg@ 4 www .w

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tlpptication filled may 23,

To all whom t may concern:

Be it known that ll, RICHARD W. Dinan, a citizen ot the lUnited States, and a resident ot Bywood, Delaware County, Pennsylvania, have invented certain new and usefful improvements in Steam Platens,'ot wlnch the following is a specification.

My invention relates to steam plates or as they are called, platens, such as are employed with power' presses in the curing of rubber andV composition goods, or for other purposes where a heated plate is required, sucli plates or platens having internal passages tor the circulation of steam orother heating medium, and forv this purpose provision is made for connecting suitable pipes to the said plates or platens for the introduction and withdrawal oit such heating medium. ln order that such heating niedium, whether liquid or fluid, may be circulated continuously throughout the whole/ extent ot the platen, the passages therein are in communication with eachother and provide a continuous path,

'llhe present invention comprises a plate having cross passages placed relatively close together and paralleling each other, at right angles to the sides of the plate, with shorter passages diagonally disposed, connecting pairs ont said cross passages at or` adjacent to their ends, so that acontinuous passage or conduit for the circulation of the heating medium is provided.

rllhese and other features ot my invention are more fully described hereinafter, reference being had to the accompanying, drawin s, in which:

igure 1, is a sectional plan view of one -itorm of heating plate within the scope of my invention.

Fig. 2, is a side elevation of the same partly in section, on the line lli- 111, Fig. 1.

Fig. 3, is a View similar to Fig. 1, illustrating a modified arrangement within the scope ot my invention, and

Fig. 4l, is a side elevation, partly 1n section, on the line lV-IV, Fig. 3.

The improved platens made in'accordance with my invention are of substantially the same type and for a purpose identical With those disclosed in the application of F. Gr. Schranz., tiled Jan. 10, 1923, Serial No. 611,718, to which reference may be made.

In one arrangement, according to my inresa. semi no. senses.

.are enlarged as indicated at 3 by the use ot' a roaming tool or other suitable instrument, and are subsequently threaded for the reception of plugs 4C, preferably tapered, to close the same. Each pair of passages, 1 and 2, is connected atene end by a short passage 5, diagonally disposed; the reamed openings 3 ot the passages 1 and 2, which are subsequently closed by the plugs 1, permitting the drilling of these short connecting passages, which may be of the same diameter as the main cross passages 1 and 2 or less, as may be desired.

In the form of structure `illustrated in.

Figs. 1 and 2, the passages 1 extend from one side of the plate, and the passages 2 extend 'from the opposite side of the plate; the diagonal passages' connecting said cross passages alternating on opposite sides of the plate.

lnl the form of plate illustrated at B, in Figs. 3 and et, the passages 1a and 2a which parallel each other across said plate, extend from side to side (or edge toedge) of the same at right angles thereto, and each set of opening 3a at the respective sides or edges of the plate are reamed or otherwise enlarged for the reception of and subsequent closure by plugs 4H. In this arrangement, of course, the diagonal passages 5 may eX- tend in either direction, as desired, with respect to the sides of the late and in either direction, as desired, with respect to said cross passages.

The passages at the ends of the respective plates are provided with connections 6, (6a), and 7, (7u), for inlet and/ or discharge ot the heating medium, and in long plates, it may be desirable to provide a plurality of sets of steam connections. In such instance, cross passages 11 (or 11a) and 12 (or 12) disposed at the central portion of the plate,

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or at other points, may be equi ped with connections 13 (or 13a) and 14 or 14) to admit and/or discharge the heating medium from and/or to a suitable source; all of the.

said connections, both for inlet and discharge ofthe heating medium, being preferab y disposed at one side of the plate.

As may be readily understood, manufacture of plates of this type is readily accomplished since the cross passages in the saine are drilled, and angs of drillingv tools can be resented at t e edges of the same; each too of each gang engaging the metal at the same time. After the cross passages are drilled, the ends of the same are reamed for the reception of the closing lugs 4 (or 4), but before these reamed en s are threaded for the reception of said lugs, the diagonal passages 5 (or 5B) are ormed. This is a relatively sim le o eration since the drill points can fin a de nite wall against which drillin can commence in the angle at the root o the enlarged recesses which receive said plugs.

ll claim:

1. A heating platen comprisin a thinwalled metal plate`- having para el cross passages in relatively close arrangement with certain of said passages extending to at least one edge of the platen and short diagonal passages connecting pairs of said cross passages and extending 'only from a point where oneof said pairs of cross passages open through the edge of the plate to an adjacent cross passage, in combination with means for closing the open ends of said cross Apassages.

2. heating platen comprising'a thin- Walled metal plate having parallel cross passages extending from edge to edge o the platen, and short diagonal passages connecting'p'airs of said cross passages to form a continuous conduit; said diagonal passages extending from the open end of one of a pair of said cross assages to theadjacent passage of said pair; said o en ends being recessed, and screw plugs tting said recesses for closing said open ends.

3. A heating platen comprising a thinwalled metal plate having a continuous conduit for the circulation of a lieatng medium; said conduit being made up of a series of closely set parallel cross passages and short diagonal passages connecting pairs of said cross passages and extending only from the open end of one cross passage to the adacent cross passage of said pair alternatey at opposite sides or edges of the platen; said cross passages extending entirely through the platen, and removable screw plugs closing the ends of said passages.

4. A heating laten of rectangular form comprising a thin-Walled metal plate having cross passages paralleling each other and extending from edge to edge of the platen at right angles to the side of the platen, screw plugs for closing the open ends of said passages; said open ends being recessed for the reception of said screw plugs, and short diagonal passages connecting pairs ot said cross passages and extending from the recess receiving the screw plug to the adjacent passages of said pairs.

ln witness whereof I have signed this specification.

RICHARD W. DINZL. 

